Combined rim and casing.



wwwl oz r5723 dilemmas Patented Jan. 15, 1918.

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H R LORENZ & H W OJENDYK COMBINED RIM AND CAQING APPLICATION FILED JUNE10 1914 1,253,988.

7 =2 m I I) V qwwm) I UNITED STATES PATENT OFFICE.

HARRY RICHARD LORENZ AND HENRY WILLIAM OJENDYK, 0F: ASHTON, NEBRASKA.

COMBINED RIM AND CASING.

Specification of Letters Patent.

Patented Jan. 15, 1918,

Application filed June 30, 1914. Serial No. 848,294,

' To all whom it may concern:

zens of the United States, residing at Ashton, in the county of Shermanand State of Nebraska, have invented a new and useful Combined Him andCasing; and we do hereby declare the following to be a full, clear, andexact description of the inven lion, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to a new and useful tire casing for automobilewheels.

As an object of the invention it is the aim to provide a casingcomprising an auxiliary steel rim substantially semi-circular in crosssection and the outer rubber casing semicircular in cross section,between which and the auxiliary steel rim the inner pneumatic tube isdesigned to be arranged, there being clench connections between therubber casing.

Another object of the invention is that the steel rim serves as one halfof the casing, thus doing away with the weakest part of the presentcasings, and further overcoming the wear on the casing caused by therough tially on the tire, which reads at the widest point I the beads ofin this case would fall upon the auxiliary steel rim. 7

A further object of the invention is that thepresent casing overcomesall rim cuts and weakness of. the casing; I

A further object of the invention is the provision of an auxiliary steelrim substansemi-circular in cross section and of sufiicient depth toreceive the rubber section of the casing when the same becomespunctured, thereby protecting the rubber section of "the casing againstdamageland entirely protectino' the same from the weight of the car,whih in the present case would fall upon the clench connecting heads. 1

Another object of. the invention is that by constructing a casing oftwo-sections substantially semi-circular in cross section, one

half of the material now used for the rubber tires is eliminated, thusproducing cheaper tires.

In practical fields the details of construe-- tion may necessitatealterations, falling within the scope of whatis claimed.

The invention comprises further features and combination of arts, ashereinafter set rawings and claimed.

rim and the other words,

gle cross sectional view of the improved tire creasing constructed inaccordance with the invention. 1

Referring more especially to the dr'awin 1 designates the dominant" rimof the whesfi, to which the auxiliary rim 2, substantially semi-circularin cross section, is bolted as shown at 3. Theinner semi-circular cavity4 of the steel rim 2 is smooth and unobstructed, and where thissemi-circular cavity connects and terminates with the horizontal, 5 anangular corner 6 is bearing surfaces provided. Engaging the flathorizontal bearing surfaces 5 are the hat horizontal surfaces 7 of thefeet portions. 8 of the-rubber casing 9 semi-circular in cross section.

.The feet portions ,arfipro'vided with later i 10, eaehhaving em-.

lurality of wire rods 11', and stability for; the

ally extending be bedded therein s' affording rigidity beads. The sideportions ofthe steel rim 2 terminate in hollow overhanging beads12 whichoverlie and. engage the beads 10 of the rubber casing 9, therebyholdingthe two sections of the casing securely together and the surfaces5 and .firmly in contact; The

' horizontal bearing surfaceso merge into the hollow inner surfaces 13of thefbeads 12, thereby providing a close fit with the surfaces 7andthe beads 10. The rubber casing 9 consists of a composition of canvasan rubber-consisting of a plurality of layers 14,

the inner layer 15 having an inner 'unob-' structed surface andterminating in flanges 16, overlying the joint between the surfaces 5and 7, thereby preventing the-inner tube 17 from bein pinched. 'Theflanges 16 bevel ofl toward tie inner surface l 'of the steel rim 2, asindicated at 18.'

The. provision of the flanges 16 filling the excessive width or spacebetween the outer surface of the inner pneumatic tube and the innersurface ofthe auxiliary rim 2, prevents 'the opposite sides of thecasing 9 from bulging outwardly and laterally, when,

pressure is applied upon the casing 9.

provides an absolutely smooth inner surface or the inner pneumatic tube.tage to -An advanbe derived by extendin sh In the, inflating of theinner tube said bulges, n I

construct ed as set forth and shown in to drawing? 16 only partiallybotweon tiie inner tube and. z-ically oppositecylindrical ledgesadjoining said rim involves tiienasy removal of Lina Lire said clencliorflanges and being (-onuantric casing. For instance when the inner tubawith the center of the when], said ledges beis deflated, time dianiobiEly op in poi. ing snbstzmxiully at right; angles to and ex- 5 lions; ofthe casing may lilo :triishen, altar tencliuigin opposite directionsfrom said arcs 35 which. casing may be removed by stretchof greater (minature thereby forming abrupt ing the same over the Glen lamflangos and.at sharp ilinmetr' lly opposite shoulders, an the same time ii-iinfiungeis A will easily pull inner mm engaging 5:1 i l rim, :1 lirecasing from lie'twaeii film innartubs and the rim. semicircular in.cross section having (liali'i Should. the 1!;1113 1.6 QXZ/ififlifl underthe ii1- metrically opposiLo portions provided with 49 nor tubs andovoriap each otliieln, the inner cylindrical ledges concentric with thecenter t'uiwwv'non crushed latemlly would tend to of the Wheel andengaging the, first lodges bincl them against each other and prevent andprovided With beads to be engaged by the casing from being, removed. Incase the chamber flanges, the inner portions of 15 the motion 9 of thecasing and thapneumatic the last named ledges halving thin ClI'CllllLLmine banana-2% pfinfi ffil'fifll igii an, the; section 9 flangestapering radially and fitting between oithe casing may in; m reived. inthe cavity the inner tube and the diametrically oppo-- inf the auxiliaryst rim, Willflh caso'the site ii'icroai-seql curved arcs of the rim,whoreb eaol-s 12 are of 1$ bi-iengfli to suppo t by the oppo ite sidesof the oar-3i g QM: pro-- veniml from bin ing; iipivniiligg miixwziuliy5:]

i l swim, and s r; .Li 3* cenatrntwil on a p than this oii'oulsw ltasclr poifiion, saidfiiamefiric agape-Sim incxew" i=1 Witnesses: into saidciroulm' hotly portion said rim iii-aims, FAIRFIEL, 30 ha ng opnositoclenoherfiangwand diameb- GEORGE L. Pomxz.

